S
M
T
W
T
F
S
26
82°
58°
27
83°
67°
28
72°
60°
29
71°
55°
30
66°
45°
1
67°
47°
2
67°
42°
3
73°
40°
4
80°
59°
5
65°
49°
6
62°
47°
7
67°
43°
8
75°
45°
9
81°
52°
10
74°
54°
11
77°
49°
12
80°
47°
13
81°
53°
14
76°
45°
15
87°
52°
16
88°
74°
17
90°
68°
18
87°
76°
19
85°
69°
20
74°
61°
21
77°
59°
22
69°
64°
23
74°
65°
24
83°
63°
25
80°
61°
26
76°
66°
27
88°
67°
28
83°
68°
29
76°
66°
30
82°
62°
31
83°
63°
1
85°
55°
2
82°
56°
3
81°
57°
4
82°
60°
5
84°
61°
6
84°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Buchanan
Buchanan's May 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 55° and 68°. The average high for May is 83° with an average low of 61°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Buchanan. See also: June | July | August.
